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Question

the function f(x)=log(π+x)log(e+x)is

A
increasing in {0,π}
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B
decreasingin(,0)
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C
decreasingom[0,πe]anddecreasingon[πe,]
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D
decreasingin[0,πe]andincreasingon[πe,]
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Solution

The correct option is A increasing in {0,π}
f(x)=log(π+x)log(e+x)
f(x)=log(e+x).1π+xlog(π+x).1(e+x)(log(e+x))2
When, x>0;π+x>e+x[π>e]

1888646_1467409_ans_f7fca3089cbb47338639655749e03a86.jpg

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